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neo-fund-py
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README.md

neo-fund

Decentralised Funding platform on the NEO blockchain.

Contract

Hash:

0x76dfef16ed0427ab26d970dee2a2e275ce526354

Address:

APU5Pj8mrMFn1bwto6Wtp7VtPfmasBc63E

Overview

Neo Fund is a decentralized funding platform, similar to kickstarter.. The basic function is to set a goal amount, and date limit. If the goal is reached the creator of the fund will be awarded the funds, and if not the contributors can redeem their funds again..

Smart Contract Invokable Operations

Creator:

  • CreateFund

Contributor:

  • DepositFunds
  • GetFundParameter
  • ReachedGoal
  • ReachedEndTime
  • IsRefundActive
  • GetContributorInfo
  • GetFundsOwed

Using Neo Fund

Using neo-python:

Copy neo-fund-py\neo-fund-prompt.py into the neo-python root directory and run python neo-fund-prompt.py -c protocol.testnet.json instead of python prompt.py -c protocol.testnet.json and then use tab complete to see all the options.

Manual invoke:

Process:

The contract input looks like this, so all operations are called by the first string, followed by an array of arguments

Main(string operation, params object[] args)

CreateFund

Create a new fund by invoking the following (duplicate will return false)

"CreateFund",[byte[] creatorSH, string fid, byte[] asset, byte[] withdrawalSH, BigInteger goal, BigInteger endtime]

DepositFunds

Contributors can now deposit to the fund, it is required that you send any assets and invoke this operation in the same transaction.

"DepositFunds",[string fid, byte[] asset, byte[] contributorSH]

GetFundParameter

Once a fund is created, you would invoke this operation to check the status or information. param input options are:

  • creatorSH
  • asset
  • withdrawalSH
  • goal
  • endtime
  • fundBalance
"GetFundParameter",[string fid, string param]

Withdrawing Funds

Once the fund has either completed or failed either the Creator or the Contributors can withdraw depending on the result. Either way the same method is used.

First; it is required to request to unlock the funds.

"WithdrawFundsRequest",[string fid, byte[] requestorSH, BigInteger requestedAmount]

Second; You will have funds unlocked if you are either the Creator or the Contributor. So you can send a withdraw transaction

Third; It is currently required to invoke a WithdrawRequestReset method do avoid double spending.

"WithdrawRequestReset",[byte[] requestorSH]

Test TX (Creating fund)

https://neoscan-testnet.io/transaction/2548ddb8aac6c18cd916358da4cea21da009d9afb312a318f16de001d40539a6